You can get 32 bit MCUs for much less (~20ct). But many sensors, USB Hubs, specialized chips have some kind of small processor inside (which is often an 8051 ri

You can get 32 bit MCUs for much less (~20ct). But many sensors, USB Hubs, specialized chips have some kind of small processor inside (which is often an 8051 right now) where this could be a good replacement, being low-gate-count, having good tools and a very low licensing cost (0$).